Another of the counties formed from Fincastle County, was Washington County, which was encompassed the western tip of Virginia, including the Powell Valley region. Although Charles Cocke had made settlements in the Powell Valley region, he probably did not move there until sometime around 1778.

In 1780, Charles Cocke was appointed a Captain of a Company of Washington County Militia. This Company was stationed at the Rocky Station Fort, which is located about 5 miles east of Jonesville on the old Daniel Boone trail in what is now Lee County.

On August 21, 1782, Charles Cocke was appointed to assist in the settlement of the estates of Joshua Butcher, Sr. and Jr., (killed by Indians) and Elisha Pepper (thought to have been killed by Indians).

Following the war, Charles Cocke was involved in a number of land transactions in Washington County.

During 1783, Charles Cocke was shown to have obtained 1,260 acres of land by Preemption Warrant. Of this, 500 acres was transferred to Colonel Arthur Campbell and 360 acres was transferred to Alexander Ewing. He also received 800 acres from his father-in-law John Ewing. There is a possibility that John Ewing had some testamentary intent in transferring the land to Charles Ewing, either as a means of transferring land to Ellender or giving the land to Charles to hold for later transfer to Ellender's younger brother, William Ewing, who was still a minor. Charles also purchased 350 acres from Joseph Martin and sold an additional 400 acres to Colonel Arthur Campbell.

In 1786, Charles obtained an additional 430 acres and sold 1,000 acres to Christopher Ecklin.

In total, the records show Charles obtaining a total of 1,980 acres: 400 acres by Preemption Warrant, 430 acres by Treasury Warrant, 800 acres from John Ewing and 350 acres from Joseph Martin. He sold 2,260 acres: 1,000 acres to Christopher Ecklin, 900 acres to Colonel Arthur Campbell and 360 acres to Alexander Ewing. Of the land sold, 1,260 acres were obtained by Preemption and other Warrants, which may be in addition to the 1,980 acres above. If so, Charles should have still held 980 acres at the end of 1786.

The two widows of the Joshua Butchers were appointed administratrix of their husbands estates by the Washington Co., VA court on August 21, 1782. The widow Katherine, wife of Joshua, Sr., had as her security Samuel Newell and Charles Cocke, and the appraisers were William Blackmore, William Cowan, Josiah Payne and Thomas Campbell. The widow Susanna had as her security Thomas Campbell and Josiah Payne. Appraisers of the estate were Charles Cocke, John and James Campbell and James Price. . . . Also at a court held on the same day as the appraisals of the Butcher estates, John Campbell was appointed Administrator of the estate of Elisha Pepper, deceased, with Samuel Newell and William Cowan as security, and Charles Cocke, William Blackmore, Josiah Payne and Thomas Campbell as appraisers.

At a Court continued and held for Washington County September 18th, 1782:
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Agreeable to an Act for adjusting claims for property impressed or taken for public service - The following claims was ordered to be reported to the General Assembly:

Charles Cocke...400 ac...Land Office Preemption Warrant...on the south side of Powells River and on both sides of the Station Creek, waters of said river...Beginning on the north side of Wallins Ridge... by a path...to the foot of Wallins Ridge...February 17, 1783. [Sold to Gabriel Chrisman, 11 Jun 1793?]

Charles Cocke, assignee of John Ewing...400 ac...Commissioners Certificate...on the head waters of Trading Creek in Powells Valley...November 10, 1783 - John Ewing...400 ac...actual settlement made in 1775...on the waggon road in the fork of Trading Creek in Powells Valley...August 10, 1781 - Assigned to Charles Cocke by purchase on November 8, 1783. Signed: John Ewing. Witness: David Carson.

Charles Cocke, assignee of John Ewing...400 ac...Preemption Warrant...on the waters of Trading Creek in Powells Valley and known by the name of the Bone of Contention...Beginning on the west side of a spur of Poor Valley Ridge...corner to his settlement right...on the south side of the Poor Valley ridge...November 10, 1783.
[Note: Listed in University of Library Collection with the date of 14 Oct 1785 [Grants R, p. 561]]

Page 152 - Col. Arthur Campbell, assignee of Charles Cocke...500 ac...Preemption Warrant...on both sides of Powells River about one mile below the mouth of the Rock House Creek...Beginning on the south side of the river on the top of the River Ridge...on the north side of Wallens Ridge...November 14, 1783. [Sold that day]

Charles Cocke, assignee of Joseph Martin...350 ac...Commissioners Certificate...below the waggon ford of Powells River on both sides of the Road known by the name of Gallip [Gatliffs*] place...November 15, 1783 - Joseph Martin, assignee of William Anderson...400 ac...by settlement made in 1775 in Powells Valley known by the name of Big Lick Place...August 11, 1781 - Assigned to Charles Cocke by purchase on October 8, 1783. Signed: Joseph Martin. Witness: Joseph Boucher.
[Note: Listed in the University of Virginia Collection with the date of 14 Oct 1785 and reference to "Gatliffs Place" [Grants R, p. 559]]

Page 195 - James Willson, assignee of Robert Rankin...255 ac...Treasury Warrant...on both sides of Powells River where the old Kentucky Road crosses...Beginning on the north side of Wallens Ridge...corner to Cocks & Charstmans [Chrisman's?] land...December 3, 1783.

Page 195 - Alexander Ewing, assignee of Charles Cocke...360 ac...Preemption Warrant...on the south side of Powells River and on the southwest side of Wallens Creek...Beginning corner to Ewings tract...passing Campbells corner...on the west side of Wallens Creek...December 5, 1783.

Col. Arthur Campbell...400 ac...Commissioners Certificate...assigned to him by Charles Cox on both sides of Powells River at the mouth of Wallens Creek...Beginning on the west side of a Ceder Ridge...November 14, 1783 - Charles Cock, assignee of John Francis & Henry Francis, assignee of Richard Staunton...400 ac...by settlement made in 1775 at the mouth of Wallens Creek, includes improvements...August 14, 1781 - Assigned to Col. Arthur Campbell by purchase on October 12, 1783. Signed: Charles Cocke. Witness: Walter Preston. [Sold that day]

400 acres on the south side of Powells River and on both sides of the Station Creek the waters of said river beginng. on the north side of Wallings Ridge.

Cocke, Charles - 13 Oct 1785 - Washington County - 400a on the head waters of Trading Creek in Powells Valley

350 acres below the Waggon Ford of Powells River on both sides of the road known by the name of Gatliffs Place.

400 acres on the waters of Trading Creek in Powells Valley, and known by the name of the Bone of Contention.

John Ewing - 400 ac - Commissioners Certificate - on the north side of Powels River and on both sides of Couk [Cocke?] Branch - by the old swept? - corner to join the Preemption tract - December 3, 1785...John & Samuel Ewing, assignees of Charles Cox - 400 ac - by settlement made in 1775 - on the north side of Powels River known by the name of Dumps Cabon on the big Spring - August 10, 1781...Assigned to John Ewing on October 10, 1783. Witness: Robert Preston. Signed: Samuel Ewing.

Christopher Ecklin, assignee of Charles Cock, assignee of Stockley Donnellson, assignee of John Lathun - 1000 ac - treasury warrant #8413 dated April 4, 1782 - in the fork of Trading Creek, a north branch of Powells river - corner to Charles Cock's settlement right - to another survey or Cock's - January 6, 1786. [Sold that day]

Major Charles Cox - 430 ac - treasury warrant #2014 dated January 25, 1782 - on the waters of Trading Creek, on both sides of the Kentucky road - beginning corner to his settlement right - January 6, 1786.
[sold 213 acres to Samuel Adams on 11 Jun 1793?; sold 216 acres to John Trotter on 10 Sep 1793?]

Col. Evan Shelby - 620 ac - Preemption warrant #1524 dated September 29, 1781 - on both sides of Powells River above and below the wagon ford - beginning on the end of the Elk knob - line of Thomas Campbell's land - corner to Cock's land - at the foot of Cumberland Mountain and along the same - March 30, 1786.

John Breckenridge - 385 ac - treasury warrant #7314 - on the north side of Powells River above the wagon ford - beginning corner to Cock's land - corner to Col. Shelby's land - March 30, 1786.

John Rhea - 200 ac - treasury warrant #12563 - on the waters of and on the south side of Powells River - corner to Isaac Chisman's land - on the south side of a branch corner to Charles Cox's land - April 25, 1785.

430 acres on the waters of Trading Creek on both sides of the Kentucky Road adjoining his Settlement Right.